Solve the problem. A reasonable quadratic model for the population of a certain city is found to be 
where B(t) is the population (in thousands) of the city in the year that is t years since 2002. A reasonable quadratic model for the number of residents of that city who were born outside the United States is 
where F(t) is the number (in thousands) of foreign-born residents of the city in the year that is t years since 2002. Let P(t) be percentage of residents of the city who were born outside the United States in the year that is t years since 2002. Find an
equation of P.
A. P(t) = 
B. P(t) = 
C. P(t) = 
D. P(t) = 
Answer: C
Mathematics
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Determine an appropriate viewing window for the given function and use it to display its graph.y = 4 
A. 
B. 
C. 
D. 
Mathematics
Solve.On Diana's phone bill, 60 of the 180 long-distance calls were in state. 
of the in-state calls were to her parents. What fraction of all her long-distance calls were to her parents?
A. 
of calls to parents
B. 
of calls to parents
C. 
of calls to parents
D. 
of calls to parents
Mathematics
Match the given function to its graph.1) y = sin 2x2) y = 2 cos x3) y = 2 sin x4) y = cos 2xA B
C D
A. 1A, 2D, 3C, 4B B. 1A, 2C, 3D, 4B C. 1A, 2B, 3C, 4D D. 1B, 2D, 3C, 4A
Mathematics
Multiply. Write the answer in lowest terms.
? 
? 
A. 
B. 
C. 
D. 
Mathematics